Abstract
In this paper, our goal is to improve the understanding of structural control of hybrid materials synthesized by using acid-catalyzed sol–gel reactions of bis-[trimethoxysilylpropyl]amine (BisSi) and 2-hydroxyethyl methacrylate (HEMA) via free radical in a common solvent. Polymer networks compositions were determined by FTIR and 1H-NMR spectroscopy. The thermal properties of the P(HEMA-BisSi) hybrids with different silica content (e.g. 10, 15 and 25 wt%) were determined by thermogravimetric analysis and differential scanning calorimetry. Glass transition temperatures (Tg´s) of P(HEMA-BisSi) networks were also compared with Tg of PHEMA homopolymer. The Tg´ of PHEMA homopolymer was found as 103.74 °C. The thermal stability of these networks was increased with the BisSi content. Scanning electron microscopy images showed that an increase in acid content caused a decrease in the pore size and pore volume as well as in the surface area of the xerogel.
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This study was supported by DGEST-4416.11-P. The authors wish to express their sincere thanks to the BUAP-CUV for their guidance and support.
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Salgado-Delgado, R., Bustos-Figueroa, L.A., García-Hernández, E. et al. Poly(2-Hydroxyethyl Methacrylate-Bis[Trimethoxysilylpropyl]Amine) Hybrid Networks. J Inorg Organomet Polym 26, 756–763 (2016). https://doi.org/10.1007/s10904-016-0391-x
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DOI: https://doi.org/10.1007/s10904-016-0391-x